Over Easy Solar OES64-EU

Mono-c-Si Bifacial

64 W Pmax

9.75 V Voc

8.04 A Isc

8.24 V Vmp

7.74 A Imp

17.72 % eff.

0.8136 FF

13 cells

IV & PV Curves at STC (1000 W/m², 25 °C)

IV Curves at Multiple Conditions

Irradiance sweep at 25 °C

Temperature sweep at 1000 W/m²

Single-Diode Model Parameters

Source: California Energy Commission module list · retrieved via SAM library · energy.ca.gov · All data sources

Parameter	Symbol	Value	Unit
Nameplate (STC)
STC Power	STC	63.778	W
PTC Power	PTC	60.9	W
Open-circuit voltage	V_oc_ref	9.75	V
Short-circuit current	I_sc_ref	8.04	A
Max-power voltage	V_mp_ref	8.24	V
Max-power current	I_mp_ref	7.74	A
Fill factor	FF	0.8136	—
Efficiency (STC)	η	17.72	%
Temperature Coefficients
Isc temperature coefficient	alpha_sc	0.004261	A/°C
Voc temperature coefficient	beta_oc	-0.023107	V/°C
Pmax temperature coefficient	gamma_r	-0.258	%/°C
NOCT	T_NOCT	43.6	°C
Single-Diode (De Soto) Parameters
Modified ideality factor	a_ref	0.3267	V
Light-generated current (ref)	I_L_ref	8.04	A
Saturation current (ref)	I_o_ref	8.79e-13	A
Series resistance	R_s	0.05629	Ω
Shunt resistance (ref)	R_sh_ref	729757.819	Ω
Cells in series	N_s	13	—
CEC Adjust factor	Adjust	-4.6454	%

Actions

Open in PV Explorer Generate PAN File Datasheet not on file CEC Source Data

Module Specifications

Technology Mono-c-Si

Bifacial Yes

BIPV No

Cells in series 13

Module area 0.36 m²

NOCT 43.6 °C

Temp. coefficient of Pmax -0.258 %/°C

Temp. coefficient of Voc -0.237 %/°C

Temp. coefficient of Isc 0.053 %/°C

CEC list On the 23 Jun 2026 list

Parameters from 23 Jun 2026 list

Measured Data

No measured data yet for this module.